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                    原型继承
            
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                    模块化Module
            
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                    异常处理
            
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                    编程风格
            
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                    js 扩展
            
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                    浏览器对象
            
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                    AJAX
            
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                    Canvas
            
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                    动画
            
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                    AJAX
            
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                    扩展
            
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                    Nodejs
            
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                    模块
            
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                    path
            
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                    流Stream
            
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                    zlib压缩解压缩
            
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                    net网络
            
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                    http
            
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                    express框架
            
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                    process 进程
            
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                    child_process
            
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                    os-操作系统
            
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                    React
            
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<p>&#x4F60;&#x53EF;&#x80FD;&#x542C;&#x8BF4;&#x8FC7;jQuery&#xFF0C;&#x5B83;&#x540D;&#x5B57;&#x8D77;&#x5F97;&#x5F88;&#x571F;&#xFF0C;&#x4F46;&#x5374;&#x662F;JavaScript&#x4E16;&#x754C;&#x4E2D;&#x4F7F;&#x7528;&#x6700;&#x5E7F;&#x6CDB;&#x7684;&#x4E00;&#x4E2A;&#x5E93;&#x3002;</p>
<p>&#x6C5F;&#x6E56;&#x4F20;&#x8A00;&#xFF0C;&#x5168;&#x4E16;&#x754C;&#x5927;&#x7EA6;&#x6709;80~90%&#x7684;&#x7F51;&#x7AD9;&#x76F4;&#x63A5;&#x6216;&#x95F4;&#x63A5;&#x5730;&#x4F7F;&#x7528;&#x4E86;jQuery&#x3002;&#x9274;&#x4E8E;&#x5B83;&#x5982;&#x6B64;&#x6D41;&#x884C;&#xFF0C;&#x53C8;&#x5982;&#x6B64;&#x597D;&#x7528;&#xFF0C;&#x6240;&#x4EE5;&#x6BCF;&#x4E00;&#x4E2A;&#x5165;&#x95E8;JavaScript&#x7684;&#x524D;&#x7AEF;&#x5DE5;&#x7A0B;&#x5E08;&#x90FD;&#x5E94;&#x8BE5;&#x4E86;&#x89E3;&#x548C;&#x5B66;&#x4E60;&#x5B83;&#x3002;</p>
<p>jQuery&#x8FD9;&#x4E48;&#x6D41;&#x884C;&#xFF0C;&#x80AF;&#x5B9A;&#x662F;&#x56E0;&#x4E3A;&#x5B83;&#x89E3;&#x51B3;&#x4E86;&#x4E00;&#x4E9B;&#x5F88;&#x91CD;&#x8981;&#x7684;&#x95EE;&#x9898;&#x3002;&#x5B9E;&#x9645;&#x4E0A;&#xFF0C;jQuery&#x80FD;&#x5E2E;&#x6211;&#x4EEC;&#x5E72;&#x8FD9;&#x4E9B;&#x4E8B;&#x60C5;&#xFF1A;</p>
<ul>
<li>&#x6D88;&#x9664;&#x6D4F;&#x89C8;&#x5668;&#x5DEE;&#x5F02;&#xFF1A;&#x4F60;&#x4E0D;&#x9700;&#x8981;&#x81EA;&#x5DF1;&#x5199;&#x5197;&#x957F;&#x7684;&#x4EE3;&#x7801;&#x6765;&#x9488;&#x5BF9;&#x4E0D;&#x540C;&#x7684;&#x6D4F;&#x89C8;&#x5668;&#x6765;&#x7ED1;&#x5B9A;&#x4E8B;&#x4EF6;&#xFF0C;&#x7F16;&#x5199;AJAX&#x7B49;&#x4EE3;&#x7801;&#xFF1B;</li>
<li>&#x7B80;&#x6D01;&#x7684;&#x64CD;&#x4F5C;DOM&#x7684;&#x65B9;&#x6CD5;&#xFF1A;&#x5199;<code>$(&apos;#test&apos;)</code>&#x80AF;&#x5B9A;&#x6BD4;<code>document.getElementById(&apos;test&apos;)</code>&#x6765;&#x5F97;&#x7B80;&#x6D01;&#xFF1B;</li>
<li>&#x8F7B;&#x677E;&#x5B9E;&#x73B0;&#x52A8;&#x753B;&#x3001;&#x4FEE;&#x6539;CSS&#x7B49;&#x5404;&#x79CD;&#x64CD;&#x4F5C;&#x3002;</li>
</ul>
<p>jQuery&#x7684;&#x7406;&#x5FF5;&#x201C;Write Less, Do More&#x201C;&#xFF0C;&#x8BA9;&#x4F60;&#x5199;&#x66F4;&#x5C11;&#x7684;&#x4EE3;&#x7801;&#xFF0C;&#x5B8C;&#x6210;&#x66F4;&#x591A;&#x7684;&#x5DE5;&#x4F5C;&#xFF01;</p>
<h3 id="&#x4F7F;&#x7528;jquery">&#x4F7F;&#x7528;jQuery</h3>
<p>&#x4F7F;&#x7528;jQuery&#x53EA;&#x9700;&#x8981;&#x5728;&#x9875;&#x9762;&#x7684;<code>&lt;head&gt;</code>&#x5F15;&#x5165;jQuery&#x6587;&#x4EF6;&#x5373;&#x53EF;&#xFF1A;</p>
<pre><code>&lt;html&gt;
&lt;head&gt;
    &lt;script src=&quot;//code.jquery.com/jquery-1.11.3.min.js&quot;&gt;&lt;/script&gt;
    ...
&lt;/head&gt;
&lt;body&gt;
    ...
&lt;/body&gt;
&lt;/html&gt;
</code></pre><p>&#x67E5;&#x770B;Jquery&#x7248;&#x672C;&#xFF1A;</p>
<pre><code class="lang-javascript"><span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;jQuery&#x7248;&#x672C;&#xFF1A;&apos;</span> + $.fn.jquery);
</code></pre>
<h3 id="&#x7B26;&#x53F7;">$&#x7B26;&#x53F7;</h3>
<p><code>$</code>&#x662F;&#x8457;&#x540D;&#x7684;jQuery&#x7B26;&#x53F7;&#x3002;&#x5B9E;&#x9645;&#x4E0A;&#xFF0C;jQuery&#x628A;&#x6240;&#x6709;&#x529F;&#x80FD;&#x5168;&#x90E8;&#x5C01;&#x88C5;&#x5728;&#x4E00;&#x4E2A;&#x5168;&#x5C40;&#x53D8;&#x91CF;<code>jQuery</code>&#x4E2D;&#xFF0C;&#x800C;<code>$</code>&#x4E5F;&#x662F;&#x4E00;&#x4E2A;&#x5408;&#x6CD5;&#x7684;&#x53D8;&#x91CF;&#x540D;&#xFF0C;&#x5B83;&#x662F;&#x53D8;&#x91CF;<code>jQuery</code>&#x7684;&#x522B;&#x540D;&#xFF1A;</p>
<pre><code class="lang-javascript"><span class="hljs-built_in">window</span>.jQuery; <span class="hljs-comment">// jQuery(selector, context)</span>
<span class="hljs-built_in">window</span>.$; <span class="hljs-comment">// jQuery(selector, context)</span>
$ === jQuery; <span class="hljs-comment">// true</span>
<span class="hljs-keyword">typeof</span>($); <span class="hljs-comment">// &apos;function&apos;</span>
</code></pre>
<p><code>$</code>&#x672C;&#x8D28;&#x4E0A;&#x5C31;&#x662F;&#x4E00;&#x4E2A;&#x51FD;&#x6570;&#xFF0C;&#x4F46;&#x662F;&#x51FD;&#x6570;&#x4E5F;&#x662F;&#x5BF9;&#x8C61;&#xFF0C;&#x4E8E;&#x662F;<code>$</code>&#x9664;&#x4E86;&#x53EF;&#x4EE5;&#x76F4;&#x63A5;&#x8C03;&#x7528;&#x5916;&#xFF0C;&#x4E5F;&#x53EF;&#x4EE5;&#x6709;&#x5F88;&#x591A;&#x5176;&#x4ED6;&#x5C5E;&#x6027;&#x3002;</p>
<p><font color="red"><em>&#x6CE8;&#x610F;</em></font>&#xFF0C;&#x4F60;&#x770B;&#x5230;&#x7684;<code>$</code>&#x51FD;&#x6570;&#x540D;&#x53EF;&#x80FD;&#x4E0D;&#x662F;<code>jQuery(selector, context)</code>&#xFF0C;&#x56E0;&#x4E3A;&#x5F88;&#x591A;JavaScript&#x538B;&#x7F29;&#x5DE5;&#x5177;&#x53EF;&#x4EE5;&#x5BF9;&#x51FD;&#x6570;&#x540D;&#x548C;&#x53C2;&#x6570;&#x6539;&#x540D;&#xFF0C;&#x6240;&#x4EE5;&#x538B;&#x7F29;&#x8FC7;&#x7684;jQuery&#x6E90;&#x7801;<code>$</code>&#x51FD;&#x6570;&#x53EF;&#x80FD;&#x53D8;&#x6210;<code>a(b, c)</code>&#x3002;</p>
<p>&#x7EDD;&#x5927;&#x591A;&#x6570;&#x65F6;&#x5019;&#xFF0C;&#x6211;&#x4EEC;&#x90FD;&#x76F4;&#x63A5;&#x7528;<code>$</code>&#xFF08;&#x56E0;&#x4E3A;&#x5199;&#x8D77;&#x6765;&#x66F4;&#x7B80;&#x5355;&#x561B;&#xFF09;&#x3002;&#x4F46;&#x662F;&#xFF0C;&#x5982;&#x679C;<code>$</code>&#x8FD9;&#x4E2A;&#x53D8;&#x91CF;&#x4E0D;&#x5E78;&#x5730;&#x88AB;&#x5360;&#x7528;&#x4E86;&#xFF0C;&#x800C;&#x4E14;&#x8FD8;&#x4E0D;&#x80FD;&#x6539;&#xFF0C;&#x90A3;&#x6211;&#x4EEC;&#x5C31;&#x53EA;&#x80FD;&#x8BA9;<code>jQuery</code>&#x628A;<code>$</code>&#x53D8;&#x91CF;&#x4EA4;&#x51FA;&#x6765;&#xFF0C;&#x7136;&#x540E;&#x5C31;&#x53EA;&#x80FD;&#x4F7F;&#x7528;<code>jQuery</code>&#x8FD9;&#x4E2A;&#x53D8;&#x91CF;.</p>

                                
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